package com.ruoyi.web.controller.system;

import com.alibaba.fastjson2.JSONObject;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.core.domain.entity.SysMenu;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginBody;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.framework.web.service.SysLoginService;
import com.ruoyi.framework.web.service.SysPermissionService;
import com.ruoyi.system.service.ISysMenuService;
import com.ruoyi.web.core.config.WxAppConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import java.io.UnsupportedEncodingException;
import java.util.List;
import java.util.Set;

/**
 * 登录验证
 *
 * @author ruoyi
 */
@RestController
public class SysLoginController {
    @Autowired
    private SysLoginService loginService;

    @Autowired
    private ISysMenuService menuService;

    @Autowired
    private SysPermissionService permissionService;

    @Autowired
    private WxAppConfig wxAppConfig;

    /**
     * 登录方法
     *
     * @param loginBody 登录信息
     * @return 结果
     */
    @PostMapping("/login")
    public AjaxResult login(@RequestBody LoginBody loginBody) {
        AjaxResult ajax = AjaxResult.success();
        // 生成令牌
        String token = loginService.login(loginBody.getUsername(), loginBody.getPassword(), loginBody.getCode(),
                loginBody.getUuid());
        ajax.put(Constants.TOKEN, token);
        return ajax;
    }

    /**
     * 获取用户信息
     *
     * @return 用户信息
     */
    @GetMapping("getInfo")
    public AjaxResult getInfo() {
        SysUser user = SecurityUtils.getLoginUser().getUser();
        // 角色集合
        Set<String> roles = permissionService.getRolePermission(user);
        // 权限集合
        Set<String> permissions = permissionService.getMenuPermission(user);
        AjaxResult ajax = AjaxResult.success();
        ajax.put("user", user);
        ajax.put("roles", roles);
        ajax.put("permissions", permissions);
        return ajax;
    }

    @GetMapping("/wxLogin")
    public AjaxResult wxLogin(String code) throws UnsupportedEncodingException {
        AjaxResult ajax = AjaxResult.success();
        if (com.ruoyi.common.utils.StringUtils.isEmpty(code)) {
            return AjaxResult.error("code不能为空");
        }
        String appSecret = wxAppConfig.getAppSecret();
        String appId = wxAppConfig.getAppId();
        String url = "https://api.weixin.qq.com/sns/oauth2/" +
                "access_token?appid=" + appId + "&secret=" + appSecret + "&code=" + code + "&grant_type=authorization_code";
        RestTemplate restTemplate = new RestTemplate();
        String result = restTemplate.getForObject(url, String.class);
        JSONObject jsonObject = JSONObject.parseObject(result);
        String openid = jsonObject.getString("openid");
        String access_token = jsonObject.getString("access_token");
        if (com.ruoyi.common.utils.StringUtils.isEmpty(openid)) {
            return AjaxResult.error("openid登录失败");
        }
        if (com.ruoyi.common.utils.StringUtils.isEmpty(access_token)) {
            return AjaxResult.error("access_token登录失败");
        }
        url ="https://api.weixin.qq.com/sns/userinfo?" +
                "access_token="+access_token+"&openid="+openid+"&lang=zh_CN";
        result = restTemplate.getForObject(url, String.class);
        jsonObject = JSONObject.parseObject(result);
        String nickname = jsonObject.getString("nickname").toString();
        nickname = new String(nickname.getBytes("ISO-8859-1"), "UTF-8");
        String s = loginService.wxLogin(openid, nickname);
        ajax.put(Constants.TOKEN, s);
        return ajax;
    }



    /**
     * 获取路由信息
     *
     * @return 路由信息
     */
    @GetMapping("getRouters")
    public AjaxResult getRouters() {
        Long userId = SecurityUtils.getUserId();
        List<SysMenu> menus = menuService.selectMenuTreeByUserId(userId);
        return AjaxResult.success(menuService.buildMenus(menus));
    }
}
